And john j



J. w. CHAPMAN ET Al. BEARING FOR LOCOMOTIVE TRUCKS AND THE LIKE Re Aug. 27, 1929.

.Ol-ff LL i f il.

Z/lql LL W6/@Primm lN*VENTOR5 ATTORNEY WITNESS:

Reissues Aug. 27, 1929.

UNITED STATES PATENT orrlclaz.y

JOHN W. CHAPMAN, OF PARSONS, KANSAS, AND JOHN MELLEY, F CHICAGO,

ILLINOIS. l

BEARING FOR LOCOMOTIVE TRUCKS AND THE LIKE.

Original No. 1,636,499, dated July 19, 1927, 'Serial No. 150,599, tiled November 24, 1926. Application for reissue mea April 1, `192,9. Serin no. 351,719.

The object 'of this invention is to provide a bearing for locomotive trucks and trailers, permitting of the use of hard oil or the like, and making it possible to dispense with the usual oil cellar,increased bearing surface being provided, to effect the best results, and better lubrication aiforded.

A further object is to provide for lubricating the bearing through .a longitudinal bore 1o in the axle.

A further obj ect is to elfect the result sought to be accomplished, by mounting 1n the box and within heavy metallic elements suitably machined, a cast iron bushing, this bushing" surrounding a brass or bronze floating bushing apertured for the passage of `lubricating material therethru, and having radial bores thru which the material is distributed from a central longitudinal bore in the axle.

With the foregoing and other objects in view, the invention consists in the novel construction and arrangement of elements de scribed, illustrated and claimed, it being un1 derstood that modifications may be made within the scope of the claims Withoutdeparting from the spirit of the invention.

In the drawings forming part of this application, Y

Figure 1 is a view of the box and bearing in elevation.

Figure 2 is a transverse vertical section, the section being on line 2-2 of Figure 3.

Figure 3 is a longitudinal section, this section being on line 3-3 of Figure 1.k

designed especially to show lubrication through the flange of the floating bushing, and constituting a slight modification.

The -box 10 has mounted therein 40 metallic elements or slabs such as 11, and-a1 bushing 12 of cast iron, or Hunt Spiller bushing, is mountedwithin elements 11, the parts being machined to provide a correct fit.

Within the cast iron bushing 12, which is retained by `threaded devices 14, We mount a further` bushing adapted to surround the journal.

The elements 14 `are inserted thru flanged bosses or the like, designated 15, and the ends of the elements 14 may be of angular form and are designated 16.

A brass or bronze floating bushing is shown at 17, and is provided with apertures thru lj ournal having a longitudinal bore and lateral Figure 4 is a fragmentary view, in section,-

Which lubricating material may pass. This f collar has a flange 17 aiding in holding ele- 55 ment 17 in position and acting as a hub liner. 'f

The journal 18 is provided with a shoulder 18 and a longitudinal bore 2O and with radial bores 21 thru which lubricating material may pass to the apertures of bushing 17, and into contact withrthe surfaces to be lubricated., The outer end of bore 20 is enlarged andfre ceives a screw 22 adapted to be adjustedin accordance with the condition orbulk of the lubricating material, this screw having a head 23 and being retained in an `adjusted position by a nut 24.

This construction has been found by a practical test to be especially satisfactory and efficient, and is designed to take the place of the construction in which lubrication is pro- ,vided from the bottom. It is obvious that .the metals or alloys employed may be varied,

but they should have substantially the characteristics of those here mentioned by way of illustration..

InFigure 4 a slight modification is shown in which the flange of bushing 17 has a bore or duct `17 thru which lubricating material passes `from cup C to the inner side of the flange adjacent to the end of the bushing 12,

Aof Figure 3.

What we claim is: 1. In an axle bearing for locomotives, a

ducts communicating with the longitudinal bore, an adjustable device for closing the outer end ofthe bore and controlling lubrieating material within the bore and ducts, an apertured bushing surrounding said journal, a second bushing concentric with that first named, an outer structure, retaining devices extending through this structure into the second bushing, and means including upper and lower concave elements, receiving and mounting the second bushing within said outer structure, the apertured bushing including an outer flange extending over the end of the second: bushing, and means engaging the flange on its outer-side, said apertured bushing floating with reference to the second bushing. 2. In a locomotive axle bearing, a journal having a longitudinal bore and lateral ducts communicating with the longitudinal bore, an adjustable device for closing the outer end of the bore, an apertured bushing surrounding said journal, a second bushing concentric with that rst named, mounting means, and radial devices extending through the mounting means into the second bushing, said apertured bushing including an outer flange, and means for lubricating the outer end portion of the second bushing through the flange.

3. A locomotive driving box bearing comprising a cylindrical rotatable bushing surrounding the journal, and a hub liner cast integral with the cylindrical bushing and positioned at the wheel end ofthe bearing.

4. A locomotive driving box bearingcomprising a cylindrical rotatable bushing cast in halves, said bushing surrounding the journal, and a hub liner cast in halves and integral with the halves of the bushing, said hub liner positioned at the wheel end of the bear- An axle bearing for railway rolling stock comprising a cylindrical bushing surrounding the journal and rotatablethereon, and a hub liner cast integral with the cylindrical bushing and positioned at the Wheel end of the bearing.

6. A railway journal box assembly comprising a box supported in the truck frame of rolling stock, a cylindrical rotating bushing surrounding the journal, and a removable filler block in the lower portion of the box occupyinga space substantially equali to the diameter of the bushing, said block adapted to hold in position thek cylindrical bushing surrounding the journal.

A railway journal box assembly comprising a box supported in the truck frame of rolling stock, a cylindrical rotating bushing surrounding the journal, a removable filler block in the lower portion of the box occupying a space substantially equal to the diamete'r ofl the bushing, said block adapted to hold in position the cylindricalbushing surrounding the journal, and means for lubricating the cylindrical bushing through the journal.

JOHN W. CHAPMAN. JOHN J. MELLEY. 

